基于扩展技术的大规模纠缠W态制备研究综述

A brief review of the expansion techniques for generating large-scale entangled W states

态扩展技术是制备大规模纠缠态的一种有效方法,已成为纠缠态制备的研究热点之一.该文旨在分析当前已有的纠缠W态扩展技术,详细介绍不同类型的纠缠态扩展门,并给出W态扩展技术中需要解决的问题,以及有待深入研究的方向.

The quantum state expansion technique is an effective method for preparing large-scale entangled states and has become one of the hot topics in the preparation of entangled states. In this paper, we gave a brief review of the current quantum state expansion schemes and the expansion gates for W states, and the purpose of which was to find the difficulties of the current quantum state expansion techniques and tried to figure out the possible directions of the further investigation.